I ran over a squirrel last year. He scampered out in front of me on a bike path and squatted down. No time to swerve or stop. He ran away by the time I turned around. I also had a chipmunk jump into my front spokes from the side of the road. I'm not sure how well he made out. Now, when I see any animal in the road, I whistle so they know I'm coming.